Dissection of the MYCN locus in Feingold syndrome and isolated oesophageal atresia.
Fiche publication
Date publication
mai 2011
Auteurs
Membres identifiés du Cancéropôle Est :
Pr CALLIER Patrick
Tous les auteurs :
Cognet M, Nougayrede A, Malan V, Callier P, Cretolle C, Faivre L, Genevieve D, Goldenberg A, Heron D, Mercier S, Philip N, Sigaudy S, Verloes A, Sarnacki S, Munnich A, Vekemans M, Lyonnet S, Etchevers H, Amiel J, de Pontual L
Lien Pubmed
Résumé
Feingold syndrome (FS) is a syndromic microcephaly entity for which MYCN is the major disease-causing gene. We studied the expression pattern of MYCN at different stages of human embryonic development and collected a series of 17 FS and 12 isolated oesophageal atresia (IOA) cases. An MYCN gene deletion/mutation was identified in 47% of FS cases exclusively. We hypothesized that mutations or deletions of highly conserved non-coding elements (HCNEs) at the MYCN locus could lead to its misregulation and thereby to FS and/or IOA. We subsequently sequenced five HCNEs at the MYCN locus and designed a high-density tiling path comparative genomic hybridization array of 3.3 Mb at the MYCN locus. We found no mutations or deletions in this region, supporting the hypothesis of genetic heterogeneity in FS.
Référence
Eur J Hum Genet. 2011 May;19(5):602-6